how to upload image from gallery using fragment

Question

we have this code for activity ... but we need to implement this in fragment

we had try but application crash on Uri selectedImageUri = data.getData(); line of code

plzz help me !!!!

Code :

public class MainActivity extends Activity implements OnClickListener{

    private TextView messageText;
    private Button uploadButton, btnselectpic;
    private ImageView imageview;
    private int serverResponseCode = 0;
    private ProgressDialog dialog = null;

    private String upLoadServerUri = null;
    private String imagepath=null;
    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        uploadButton = (Button)findViewById(R.id.uploadButton);
        btnselectpic = (Button)findViewById(R.id.button_selectpic);
        messageText  = (TextView)findViewById(R.id.messageText);
        imageview = (ImageView)findViewById(R.id.imageView_pic);

        btnselectpic.setOnClickListener(this);
        uploadButton.setOnClickListener(this);
        upLoadServerUri = "http://10.0.2.2/newapp/UploadToServer.php";
        ImageView img= new ImageView(this);

    }


    @Override
    public void onClick(View arg0) {
        if(arg0==btnselectpic)
        {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Complete action using"), 1);
        }
        else if (arg0==uploadButton) {

             dialog = ProgressDialog.show(MainActivity.this, "", "Uploading file...", true);
             messageText.setText("uploading started.....");
             new Thread(new Runnable() {
                 public void run() {

                      uploadFile(imagepath);

                 }
               }).start();     
        }

    } 

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        if (requestCode == 1 && resultCode == RESULT_OK) {
            //Bitmap photo = (Bitmap) data.getData().getPath(); 

            Uri selectedImageUri = data.getData();
            imagepath = getPath(selectedImageUri);
            Bitmap bitmap=BitmapFactory.decodeFile(imagepath);
            imageview.setImageBitmap(bitmap);
            messageText.setText("Uploading file path:" +imagepath);

        }
    }
         public String getPath(Uri uri) {
                String[] projection = { MediaStore.Images.Media.DATA };
                Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                return cursor.getString(column_index);
            }

    public int uploadFile(String sourceFileUri) {


          String fileName = "ReplacedwithUserid.jpg";

          HttpURLConnection conn = null;
          DataOutputStream dos = null;  
          String lineEnd = "\r\n";
          String twoHyphens = "--";
          String boundary = "*****";
          int bytesRead, bytesAvailable, bufferSize;
          byte[] buffer;
          int maxBufferSize = 1 * 1024 * 1024; 
          File sourceFile = new File(sourceFileUri); 

          if (!sourceFile.isFile()) {

               dialog.dismiss(); 

               Log.e("uploadFile", "Source File not exist :"+imagepath);

               runOnUiThread(new Runnable() {
                   public void run() {
                       messageText.setText("Source File not exist :"+ imagepath);
                   }
               }); 

               return 0;

          }
          else
          {
               try { 

                     // open a URL connection to the Servlet
                   FileInputStream fileInputStream = new FileInputStream(sourceFile);
                   URL url = new URL(upLoadServerUri);

                   // Open a HTTP  connection to  the URL
                   conn = (HttpURLConnection) url.openConnection(); 
                   conn.setDoInput(true); // Allow Inputs
                   conn.setDoOutput(true); // Allow Outputs
                   conn.setUseCaches(false); // Don't use a Cached Copy
                   conn.setRequestMethod("POST");
                   conn.setRequestProperty("Connection", "Keep-Alive");
                   conn.setRequestProperty("ENCTYPE", "multipart/form-data");
                   conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
                   conn.setRequestProperty("uploaded_file", fileName); //replaced with fileName
                   //conn.setRequestProperty(field, newValue);
                   dos = new DataOutputStream(conn.getOutputStream());

                   dos.writeBytes(twoHyphens + boundary + lineEnd); 
                   dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
                                             + fileName + "\"" + lineEnd);

                   dos.writeBytes(lineEnd);

                   // create a buffer of  maximum size
                   bytesAvailable = fileInputStream.available(); 

                   bufferSize = Math.min(bytesAvailable, maxBufferSize);
                   buffer = new byte[bufferSize];

                   // read file and write it into form...
                   bytesRead = fileInputStream.read(buffer, 0, bufferSize);  

                   while (bytesRead > 0) {

                     dos.write(buffer, 0, bufferSize);
                     bytesAvailable = fileInputStream.available();
                     bufferSize = Math.min(bytesAvailable, maxBufferSize);
                     bytesRead = fileInputStream.read(buffer, 0, bufferSize);   

                    }

                   // send multipart form data necesssary after file data...
                   dos.writeBytes(lineEnd);
                   dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

                   // Responses from the server (code and message)
                   serverResponseCode = conn.getResponseCode();
                   String serverResponseMessage = conn.getResponseMessage();

                   Log.i("uploadFile", "HTTP Response is : " 
                           + serverResponseMessage + ": " + serverResponseCode);

                   if(serverResponseCode == 200){

                       runOnUiThread(new Runnable() {
                            public void run() {
                                String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
                                      +" C:/wamp/www/newapp/uploads";
                                messageText.setText(msg);
                                Toast.makeText(MainActivity.this, "File Upload Complete.", Toast.LENGTH_SHORT).show();
                            }
                        });                
                   }    

                   //close the streams //
                   fileInputStream.close();
                   dos.flush();
                   dos.close();

              } catch (MalformedURLException ex) {

                  dialog.dismiss();  
                  ex.printStackTrace();

                  runOnUiThread(new Runnable() {
                      public void run() {
                          messageText.setText("MalformedURLException Exception : check script url.");
                          Toast.makeText(MainActivity.this, "MalformedURLException", Toast.LENGTH_SHORT).show();
                      }
                  });

                  Log.e("Upload file to server", "error: " + ex.getMessage(), ex);  
              } catch (Exception e) {

                  dialog.dismiss();  
                  e.printStackTrace();

                  runOnUiThread(new Runnable() {
                      public void run() {
                          messageText.setText("Got Exception : see logcat ");
                          Toast.makeText(MainActivity.this, "Got Exception : see logcat ", Toast.LENGTH_SHORT).show();
                      }
                  });
                  Log.e("Upload file to server Exception", "Exception : "  + e.getMessage(), e);  
              }
              dialog.dismiss();       
              return serverResponseCode; 

           } // End else block 
         }
}

logcat:

08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:22.136: E/AndroidRuntime(1103): 08-08 01:50:27.366: I/Choreographer(1173): 08-08 01:50:28.186: D/dalvikvm(1173): FATAL EXCEPTION: main Process: in.acsg, PID: 1103 java.lang.RuntimeException: Failure delivering result ResultInfo{who=android:fragment:1, request=1, result=-1, data=Intent { dat=content://media/external/images/media/42 }} to activity {in.acsg/in.acsg.HomeScrren}: java.lang.NullPointerException at android.app.ActivityThread.deliverResults(ActivityThread.java:3365) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3408) at android.app.ActivityThread.access$1300(ActivityThread.java:135) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5017) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.NullPointerException at in.acsg.mainScreen.Publish.getPath(Publish.java:124) at in.acsg.mainScreen.Publish.onActivityResult(Publish.java:109) at android.app.Activity.dispatchActivityResult(Activity.java:5427) at android.app.ActivityThread.deliverResults(ActivityThread.java:3361) ... 11 more Skipped 118 frames! The application may be doing too much work on its main thread. GC_FOR_ALLOC freed 201K, 9% free 2986K/3272K, paused 39ms, total 40ms

please help me to solve this problem

Post a stack trace so that we can see the error you are getting. — Andrew Schuster, Aug 07 '14 at 12:43
Check: [onActivityResult not being called in Fragment](http://stackoverflow.com/questions/6147884/onactivityresult-not-being-called-in-fragment) — Paresh Mayani, Aug 07 '14 at 12:50

joecizac · Accepted Answer · 2014-08-08T07:30:05.957

onActivityResult() does not get called in Fragment.

Try,

Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Complete action using"), 1);

make sure your parent activity is extending FragmentActivity override onActivityResult() in your FragmentActivity

Below are the snippets from my app (in my fragment class)

private void captureImage() {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        imageURI = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, imageURI);
        startActivityForResult(intent, CAMERA_REQUEST_CODE);
    }

(in my parent activity)

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

    }

@Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
    }

score 0 · Answer 2 · answered May 05 '18 at 14:32

The fragment lives within an activity, so you can delegate the job to the activity, you have Activity (A) that holds fragment (B), and you would like to upload a picture from within fragment (B), but the onActivityResult life cycle hook isn't being triggered from the fragment(B), so you can create an interface (C) that has a method, which when is triggered will trigger the onActivityResult life cycle hook within the activity that holds the fragment

in other words:

Interface (C) will have a method called pleaseUploadPicture();
Activity (A) will implement this method, in which it will trigger onActivityResult, because (A) is an activity
Inside fragment (B), create a variable "interfaceCReference" that hold a reference to (C) interface, override the onAttach method to set the value of the (C) interface reference " interfaceCReference = (C) context; "
Inside fragment (B), OnClick @ the upload button, make the interfaceCReference call pleaseUploadPicture method " interfaceCReference .pleaseUploadPicture(); "

how to upload image from gallery using fragment

2 Answers2